Lexus NX: Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL
NOTICE:
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After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
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When disconnecting and reconnecting the auxiliary battery
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HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
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DOOR CONTROL RECEIVER EXPRESSIONS
(a) The type of door control receiver used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.
| Vehicle Specification | Part Name in Manual | Actual Part Name |
|---|---|---|
| w/ Tire Pressure Warning System | Door control receiver | Electrical key & TPMS receiver assembly |
PRECAUTION WHEN USING TECHSTREAM
(a) When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
PRECAUTION FOR REGISTRATION
(a) If replacing any of the following parts, refer to the registration procedures.
(1) Certification ECU (smart key ECU assembly)
(2) Steering lock ECU (steering lock actuator assembly)
(3) Electrical key transmitter sub-assembly
(4) ID code box (immobiliser code ECU)
(5) Main body ECU (multiplex network body ECU)
(6) Hybrid vehicle control ECU
(7) DCM (telematics transceiver)*
- *: for Lexus Enform Remote Compatible Type
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Parts Location
PARTS LOCATION ILLUSTRATION *1 NO. 1 ENGINE ROOM RELAY BLOCK - IG2-MAIN RELAY *2 NO. 2 ENGINE ROOM RELAY BLOCK - IG1 RELAY *3 SKID CONTROL ECU (BRAKE BOOSTER WITH MASTER CYLINDER ASSEM
System Diagram
SYSTEM DIAGRAM Component Outline Power switch
Transponder key amplifier
Turns on the power and starts the hybrid control system.
Contains a built-in transponder key amplifier t
System Description
SYSTEM DESCRIPTION SYSTEM FUNCTION Function Outline Push-button start function When the electrical key transmitter sub-assembly is brought into the vehicle and verified, this function chang
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If
System Description
SYSTEM DESCRIPTION UNLOCK OPERATION CONDITIONS FOR STEERING LOCK (a) When the following condition is met, the unlock operation is performed.
The power switch is on (ACC) or on (IG).
HINT: When the power switch is turned on (ACC) or on (IG) and the key and certification ECU (smart key ECU assem
